package com.sky.controller.admin;


import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.swing.text.html.parser.TagElement;
import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /*
    * 新增菜品和对应的口味
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("添加的菜品为{}",dishDTO);
        dishService.saveWithFloavor(dishDTO);


        //当新增菜品的时候,需要清理缓存
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);
        return Result.success();
    }


    /*
    * 菜品分页查询
    * */
    @GetMapping("/page")
    @ApiOperation("菜品分页")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("当前查询的菜品分页 :{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /*
    * 菜品的删除操作
    * */
    @DeleteMapping
    @ApiOperation("批量删除操作")
    // 为什么加@RequestParam 前端发的是1,2,3 这样的数据可以使用String字符串分隔
    //也可以使用@RequestParam 会把变成list集合里的各个元素 自己解析
    public Result delect(@RequestParam List<Long> ids){
        log.info("当前需要删除的Id为:{}",ids);
        dishService.delectBatch(ids);
        cleanCache("dish_*");
        return Result.success();
    }

    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品和口味信息")
    public Result<DishVO> getByid(@PathVariable Long id){
        DishVO dishVO = dishService.getByidWithFlavor(id);
        return Result.success(dishVO);
    }

    /*
    修改菜品信息
    */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品的信息为:{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);
        cleanCache("dish_*");
        return Result.success();
    }
    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }


    //清理缓存数据
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

    /**
     * 菜品起售停售
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result<String> startOrStop(@PathVariable Integer status, Long id){
        dishService.startOrStop(status,id);
        return Result.success();
    }
}
